Computing-scale.



No. 700,920. Patented May .27, I902.

A. B. HAYOEN.

COMPUTING SCALE.

(Applicatibn filed A r. 6, 1901.

(No Model.) 2 Shaets8heet l.

THE NORWS PETERS c0, :moTouwo. \vAsnmmcN, n. c.

Patented May 27 A. B. HAYDEN.

COMPUTING SCALE.

(ipplicaticn filed Apr. 6, 1901.)

2 Shets-$heet 2.

(No Model.)

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UNITED STATES PATENT Option.

AUSTIN B. HAYDEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO COMPUTING SCALECOMPANY OF AMERICA, A CORPORATION OF NEIV JERSEY.

COMPUTING-SCALE.

SPECIFICATION forming part of Letters Patent No. 700,920, dated May 27,1902.

Application filed April 6, 1901. Serial No. 54,667. (No model.)

T0 ctZZ whom it may concern.-

Be it known that I, AUSTIN B. HAYDEN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Computing- Scale, of which the following is aspecification.

My invention relates particularly to computing-scales of thespring-balance type, my

my improvements; Fig; 2, a central vertical section of the same, theload-pan being detached; Fig. 3, a transverse section taken as indicatedat line 3 of Fig. 2, and Fig. 4 a fragmentary View showing a ball-cupconnected with the lower end of the casing or frame. I

A represents a vertically-disposed casing or frame portion which may besupported from any suitable frame or standard by means of the eye orloop aat its top l3, a verticallydisposed computing-cylinder containedwithin said casing; C, a vertically-disposed cylinder-actuating rodjournaled in the casing A and having rigid connection with the cylinderB; D, a standard or spring-support located Within the computing-cylinderand supported from the base or lower end of the casing A; E, a springsupported cylinder-actuating cross-head which serves also as a member ofthe load-supporting device; F, a clevis or stirrup supported from themember E, and G a load-pan supported from the clevis F.

The casing A comprises, preferably, an upper head or end a, cylindricalbody a a lower end a and sight-glasses a a and a, arranged in verticalslots with which the casing-front is provided. .The head a is providedcentrally with an adjustable ball-c up a having a stem a which hasthreaded connection with said lower end and is provided with a lock-nuta". The casing ends are connected by rods a as shown. The rod C has aconical lower end which rests upon balls in the cup a and at its upperend is provided with l a conical recess. which receives the conical endof a screw a, connected with the upper end a of the casing. It will thusbe seen that the red C and the computing-cylinder fixed thereto areadjustable vertically.

The computing-cylinder comprises a body or cylindrical portion Z) and anupper end I), through which the upper end of the rod C extends There isof course sufficient space between the cylinder B and the casing A topermit the cylinder to turn freely with the rod C. Said cylinder rotatesin the direction indicated by the arrow in Figs. 1 and 2 when theload-pan is depressed. It is provided with circumferential rows ofcost-computationsor value-indicating figures, a few only of which areshown. The casing A is provided with verticallyarranged columns ofprice-indicating figures located adjacent to the margins of thesight-glasses a a. The rows of value-indicating figures of thecompitting-cylinder should come opposite the appropriateprice-indicating figures, and this is provided for in the verticaladjustment of the rod C. The cylinder B is provided with circumferentialrows of weightindicating characters, located so as to pass beneath thesight-glass a when said cylinder is rotated. The casing A is providedwith a fine vertically-disposed wire 0, which crosses the sightglassesmentioned and affords a referenceline or reading-line. The scale isshown at restiin Fig. 1, and in this position the zeromarks of thecomputing-cylinder are beneath the wire 0. Directly to the left of thewire 0 are shown certain of the cost computations which correspond tothe highest weight which the scale can givein this instance twentyfourpounds. The manner of supplying the computing-cylinder with costcomputations is now well understood in the art, and it is deemedunnecessary to give any detailed description thereof. In Fig. 1 Ihaveshown the value-indicating figures from 5 to 15, inclusive, arrangedopposite the sight-glass a and the figures 16 to 30, inclusive, arrangedopposite the sight-glass a, the sightglass a at which theweightindicating figures are used being intermediate the glasses a anda.

The spring standard or support D com prises vertical rods (Z, havingthreaded connection with the lower end of the casing A and provided withlock-nuts d and a cross-bar (lat the upper ends of said rods and towhich the springs E are attached. The cross-bar d is provided with acentral perforation through which the rod 0 loosely extends, and thelower end of the casing A is provided with perforations through whichthe vertical members of the clevis F loosely extend. I

The member E is provided at one end with a yieldingly-held roller f,which engages the adjacent standard-rod d, and centrally with arelatively large opening f, through which the rod O extends. At theopeningf is journaled on screw-pointsf a roller f which engages a spiralf, with which the rod 0 is provided. In said openingf is also located ayieldingly-held roller f which is close to or in light contact with theadjacent cylindrical surface of rod 0. The tension of the roller f maybe regulated by a screwf, as shown.

The operation of the scale will be readily understood from the foregoingdescription. In assembling the parts the rod 0 may be verticallyadjusted, and through the medium thereof the cylinder B is raised orlowered to bring its value-indicating rows into correct alinement withthe price-indicating figures of the casing. The standard D may beadjusted vertically to cause the cylinder through the medium of the rodC to rotate in one direction or the other to bring the zero-marks of thecylinder beneath the wire 0. After the adjustment has been properly madethe article to be weighed is thrown upon the loadpan G, therebydepressing the clevis F and the cylinder-actuating member E. The memberE isguided in its vertical movement by the roller f, and hence isnon-rotatable. Downward movement of the member E, therefore, causes therod 0 to rotate in the direction indicated by the arrow in Fig. 2,thereby caus ing the computing-cylinder to rotate in the directionindicated by the arrow in Fig. 1. The weight of the article will afterthis action appear beneath the wire 0 at the sightglass a, while thevalue will appear opposite the appropriate number ofthe price-index andbeneath said wire.

It will be understood readily that a scale of this description will comequickly to rest in the weighing operation, as the inertia of thecomputing-cylinder will always be in a direction to oppose the reactiveforces upon the member E, due to the springs E and to the weight of theload.

Changes in details of construction within the spirit of my invention maybe made. Hence no limitation is to be understood from the foregoingdetailed description except as shall appear from the appended claims.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a spring-balance computing-scale, a vertically-disposedcomputing-cylinder, in combination with a cylinder-actuating rodprovided with a spiral, a rod-actuating verticallymovable non-rotatablecross-head engaging said spiral, and a load-support beneath andsuspended from said cross-head, substantially as described.

2. In a spring-balance computing-scale, the combination of asuitably-supported non-rotatable casing or frame provided with apriceindex, a vertically-disposed rotatable computing-cylinder in saidcasing, the same being provided with cost computations, acylinderactuating rod journaled in said casing and provided with aspiral, a spring-support, a spring connected therewith, a load-supportconnected with said spring and a verticallymovable non-rotatablecross-head disposed vertically above and moving with said loadsupportand serving to actuate said rod, sub stantially as described.

3. In a spring-balance computing-scale, the combination of asuitably-supported vertical non-rotatable casing provided with apriceindex,a vertical rotatable computing-cylinder in said casingprovided with cost computations, a vertically-disposedcylinder-actuating rod supporting said cylinder and journaled in saidcasing, said rod being provided with a spiral, a spring-supportingstandard within said cylinder and supported from the bottom of saidcasing, a spring supported thereby, a vertically-movable cross-headsupported from said spring and having engagement with the spiral of saidrod for imparting rotary movement to said rod, and a spring supportedload pan, substantially as described.

4. The combination of a suitable frame or casing provided with aprice-index, a vertically-disposed computing-cylinder provided with costcomputations, a spiral-equipped cylinder-actuating rod supporting saidcylinder and having adjustable bearings at the ends of said casing, aspring-supporting standard within said cylinder and supported from saidcasing, a spring supported thereon, a vertically-movable cross-headengaging the spiral of said rod and serving to rotate the rod, and aspring-supported load-receiving pan or platform, substantially asdescribed.

5. In a spring-balance computing-scale, a suitable casing, a computingcylinder, a spring supporting standard of adjustable height supportedwithin said casing, a spiralequipped cylinder-actuating rod supportingsaid cylinder and journaled in said casing, a spring connected with saidstandard, a vertically-movable cross-head engaging the spiral of saidrod and serving to actuate said rod, and a spring-supportedload-receiver vertically beneath and actuating said cross-head, asdescribed.

6. In a spring-balance computing-scale, the combination of asuitably-journaled vertically-disposed spiral-equippedcylinder-actuating rod, a computing-cylinder fixed to rotate therewith,a spring-support, averticallymovable cross-head within said cylinder andiIo having engagement with the spiral of said rod and serving to rotatesaid rod, and a spring-supported load-receiver moving with saidcross-head, substantially as described.

7. In a computing-scale, the combination of a suitably-journaledvertically-disposed spiral-equipped cylinder actuating rod, acomputing-cylinder fixed to rotate therewith, a spring-support, aspring, a vertically-movable cross-head, antifriction-bearing betweensaid cross-head and spiral of said rod, and a spring-supportedload-receiver vertically beneath and actuating said cross-head,substantially as described.

8. In a spring-balance computing-scale, the combination of asuitably-journaled Vertically-disposed spiral-equippedcylinder-actuating rod, a computing-cylinder fixed to rotate therewith,a spring-support, a spring, a

